usb: gadget: udc: pxa27x_udc: Fix a bunch of kerneldoc issues

Mostly bitrotted argument descriptions/names.  Also the removal
of a blank line in the middle of a kerneldoc header, which is
not allowed.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/pxa27x_udc.c:398: warning: Function parameter or member 'ep' not described in 'ep_write_UDCCSR'
 drivers/usb/gadget/udc/pxa27x_udc.c:398: warning: Excess function parameter 'udc' description in 'ep_write_UDCCSR'
 drivers/usb/gadget/udc/pxa27x_udc.c:479: warning: Function parameter or member 'udc' not described in 'set_ep0state'
 drivers/usb/gadget/udc/pxa27x_udc.c:479: warning: Excess function parameter 'dev' description in 'set_ep0state'
 drivers/usb/gadget/udc/pxa27x_udc.c:506: warning: Excess function parameter 'req' description in 'inc_ep_stats_reqs'
 drivers/usb/gadget/udc/pxa27x_udc.c:1476: warning: bad line:
 drivers/usb/gadget/udc/pxa27x_udc.c:1697: warning: Function parameter or member 'udc' not described in 'udc_enable'
 drivers/usb/gadget/udc/pxa27x_udc.c:1697: warning: Excess function parameter 'dev' description in 'udc_enable'
 drivers/usb/gadget/udc/pxa27x_udc.c:1750: warning: Function parameter or member 'g' not described in 'pxa27x_udc_start'
 drivers/usb/gadget/udc/pxa27x_udc.c:1750: warning: Excess function parameter 'bind' description in 'pxa27x_udc_start'
 drivers/usb/gadget/udc/pxa27x_udc.c:1784: warning: Excess function parameter 'driver' description in 'stop_activity'
 drivers/usb/gadget/udc/pxa27x_udc.c:1800: warning: Function parameter or member 'g' not described in 'pxa27x_udc_stop'
 drivers/usb/gadget/udc/pxa27x_udc.c:1800: warning: Excess function parameter 'driver' description in 'pxa27x_udc_stop'
 drivers/usb/gadget/udc/pxa27x_udc.c:2358: warning: Function parameter or member 'pdev' not described in 'pxa_udc_probe'
 drivers/usb/gadget/udc/pxa27x_udc.c:2358: warning: Excess function parameter '_dev' description in 'pxa_udc_probe'

Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-7-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/gadget/udc/pxa27x_udc.c

@@ -386,7 +386,7 @@ static inline void udc_clear_mask_UDCCR(struct pxa_udc *udc, int mask)
 
 /**
  * ep_write_UDCCSR - set bits in UDCCSR
- * @udc: udc device
+ * @ep: udc endpoint
  * @mask: bits to set in UDCCR
  *
  * Sets bits in UDCCSR (UDCCSR0 and UDCCSR*).
@@ -472,7 +472,7 @@ static int epout_has_pkt(struct pxa_ep *ep)
 
 /**
  * set_ep0state - Set ep0 automata state
- * @dev: udc device
+ * @udc: udc device
  * @state: state
  */
 static void set_ep0state(struct pxa_udc *udc, int state)
@@ -498,7 +498,6 @@ static void ep0_idle(struct pxa_udc *dev)
 /**
  * inc_ep_stats_reqs - Update ep stats counts
  * @ep: physical endpoint
- * @req: usb request
  * @is_in: ep direction (USB_DIR_IN or 0)
  *
  */
@@ -1473,7 +1472,6 @@ static void udc_disable(struct pxa_udc *udc);
  * Context: any
  *
  * The UDC should be enabled if :
-
  *  - the pullup resistor is connected
  *  - and a gadget driver is bound
  *  - and vbus is sensed (or no vbus sense is available)
@@ -1688,7 +1686,7 @@ static void udc_init_data(struct pxa_udc *dev)
 
 /**
  * udc_enable - Enables the udc device
- * @dev: udc device
+ * @udc: udc device
  *
  * Enables the udc device : enables clocks, udc interrupts, control endpoint
  * interrupts, sets usb as UDC client and setups endpoints.
@@ -1732,8 +1730,8 @@ static void udc_enable(struct pxa_udc *udc)
 
 /**
  * pxa27x_start - Register gadget driver
+ * @g: gadget
  * @driver: gadget driver
- * @bind: bind function
  *
  * When a driver is successfully registered, it will receive control requests
  * including set_configuration(), which enables non-control requests.  Then
@@ -1775,7 +1773,6 @@ static int pxa27x_udc_start(struct usb_gadget *g,
 /**
  * stop_activity - Stops udc endpoints
  * @udc: udc device
- * @driver: gadget driver
  *
  * Disables all udc endpoints (even control endpoint), report disconnect to
  * the gadget user.
@@ -1792,7 +1789,7 @@ static void stop_activity(struct pxa_udc *udc)
 
 /**
  * pxa27x_udc_stop - Unregister the gadget driver
- * @driver: gadget driver
+ * @g: gadget
  *
  * Returns 0 if no error, -ENODEV, -EINVAL otherwise
  */
@@ -2349,7 +2346,7 @@ MODULE_DEVICE_TABLE(of, udc_pxa_dt_ids);
 
 /**
  * pxa_udc_probe - probes the udc device
- * @_dev: platform device
+ * @pdev: platform device
  *
  * Perform basic init : allocates udc clock, creates sysfs files, requests
  * irq.